| http://www.w3.org/ns/prov#value | - fixed to the lower end of said struts and having an inside diameter on the order of the outside diameter of the riser tube and slidably engaging said tube, and a filter screen surrounding said struts and interposed between said baffle ring and said deflector plate, and said struts including means for maintaining said deflector plate spaced axially at its center from the upper end of said riser tub
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